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UNISYS COBOL Developers / Mainframe Engineers – Federal Contract (Remote)

Remote, USA Full-time Posted 2026-06-06

Company Description

Advent Business Company is a trusted technology solutions provider recognized for its expertise and certifications, including CMMI/Dev III, ISO 9001:2015, ISO/IEC 27001:2013, and ISO/IEC 20000:2011. As a DCAA-compliant and SBA 8(a)/SDB-certified enterprise, Advent specializes in delivering innovative IT solutions to meet diverse client needs. The company is also part of the GSA GWAC 8(a) Stars III program, which underscores its commitment to quality and excellence in IT services. Advent leverages its robust capabilities to provide tailored solutions that drive operational efficiency and business success. We're staffing up for an upcoming federal IRS engagement supporting the Audit Information Management System (AIMS) a mission-critical legacy mainframe application within the IRS Compliance domain. What You'll Do:

  • Develop, maintain, and modernize COBOL-85 applications on UNISYS Eldorado mainframe
  • Write and execute Executive Control Language (ECL) scripts using CMplus configuration management
  • Author Functional Specification Plans (FSPs), conduct code reviews, and execute Unit/ISAT testing
  • Support O&M, batch processing, and production incident resolution
  • Participate in structured knowledge transfer and assisted development with IRS FTEs

What We're Looking For:

  • MUST have Hands-on experience with UNISYS COBOL-85, ECL, IPF, and CMplus
  • Familiarity with IRS systems (IDRS, DocIT, IRWorks) strongly preferred
  • Prior federal contract experience, especially IRS or Treasury
  • Ability to obtain an IRS Minimum Background Investigation (MBI) clearance
  • U.S. Citizen or Lawful Permanent Resident required

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